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RCBS MatchMaster 300 PRC Seater Die
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$119.69
List Price: $125.99
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SKU: 28640-604544654561
Overview
Built for precision handloading, this seating die is intended for reloaders working with 300 PRC cartridges who want careful bullet placement and consistent adjustment control. It uses a bullet seating window with a retention system, a free-floating self-centering seating stem, and a large oversize micrometer to make fine changes easier to read and set. The internal sleeve is designed to guide the bullet during seating and help keep it aligned with the case. As a stand-alone die, it fits a focused reloading setup where repeatable seating control matters more than extra features.
Why Hunters Choose the Rcbs
Bullet Seating
Die only for dedicated 300
Oversized Micrometer
Adjustment knob is easy to
Loading Window
Lets you drop the bullet
Free-floating, Self-centering
Seating stem supports consistent bullet
Internal Sleeve
Guides the bullet during seating
Key Features
- Bullet seating die only for 300 PRC reloading
- Large oversize micrometer adjustment knob with easy-to-read markings
- Exclusive loading window lets you drop in the bullet before seating
- Free-floating, self-centering seating stem helps guide the bullet
- Internal sleeve holds the bullet in alignment during seating
- Standard 7/8"-14 thread sizing for compatible presses
Best Used For
- Precision-minded reloaders building 300 PRC ammunition with a dedicated seating die.
- Shooters who want easy-to-read adjustments for careful bullet seating changes.
- Reloaders using a press setup that benefits from a bullet seating window.
- Users prioritizing a self-centering seating stem for consistent cartridge alignment.
- Handloaders seeking a stand-alone seater die for an existing MatchMaster setup.
Specifications
| Adjustment Knob | Large Oversized Adjustment Knob |
|---|---|
| Adjustment Markings | Oversized Letters and Hash Marks |
| Blade Finish | Deep Blued Finish |
| Bullet Retention System | Yes |
| Bullet Seating Window | Yes |
| Cartridge | 300 PRC |
| Country Of Origin | Made In USA |
| Die Type | Bullet Seating Die Only |
| Free Floating Self Centering Bullet Seating Stem | Yes |
| Hand Polished | Yes |
| Internal Sleeve | Yes |
| Large Oversize Micrometer | Yes |
| Material | Case Hardened Steel |
| Precision Drilled And Reamed Interior | Yes |
| Thread Size | 7/8"-14 |
| Warranty | Limited Lifetime Warranty |
Pros
- Bullet seating die only for dedicated 300 PRC seating operations
- Oversized micrometer adjustment knob is easy to read and precise to turn
- Loading window lets you drop the bullet in without balancing it on the case mouth
- Free-floating, self-centering seating stem supports consistent bullet alignment
- Internal sleeve guides the bullet during seating for concentric results
- Standard 7/8"-14 thread fits common reloading press setups
Considerations & Trade-offs
- This is a bullet seating die only, so it does not cover case sizing or other reloading steps.
- It is built around a micrometer-style adjustment system, which adds precision but may be more than needed for simple, non-adjustable seating setups.
- The loading window and internal sleeve are designed for guided bullet seating, so the die is more specialized than a basic seater.
- It is specified for 300 PRC and standard 7/8"-14 threads, so compatibility depends on that cartridge and press setup.
Suggested Comparisons
- Reloading die set
- Full-length sizing die
- Neck sizing die
- Bullet seating die
Suggested Accessories
- Reloading press
- Case trimmer
- Powder scale
- Calipers
Frequently Asked Questions
Is this a full die set or just one die?
This product is a bullet seating die only. It is not a full-length or neck-size die set.
What cartridge is this MatchMaster seater die made for?
It is listed as a 300 PRC seater die.
What adjustment features does it have for seating depth?
The die includes a large oversize micrometer adjustment knob with oversized letters and hash marks for easier reading and precise adjustment.
Does the die include any bullet alignment or retention features?
Yes. The description says it has an exclusive loading window with a bullet retention system, plus an internal sleeve that catches and holds the bullet in alignment with the case during seating.
What thread size does this die use?
The specifications list a standard 7/8"-14 thread.